WARNING
WARNING
TM 55-2840-254-23
4-68 CLEAN FIRST TURBINE NOZZLE (AVIM)
4-68
INITIAL SETUP
General Safety Instructions:
Applicable Configurations:
All
Tools:
Powerplant Mechanic’s Tool Kit,
NSN 5180-00-323-4944
Goggles
Compressed Air Source
Materials:
Gloves (E20)
Methyl Ethyl Ketone (E36)
Personnel Required:
68B10 Aircraft Powerplant Repairer
Equipment Condition:
Off Engine Task
Engine Oil System Drained (Task 1-75)
Combustion Section and Power Turbine
Removed (Task 3-5)
Second Turbine Disc Assembly Removed
(Task 4-53)
Second Turbine Nozzle, Spacer, and Case
Removed (Task 4-57)
First Turbine Disc Assembly Removed
(Task 4-62)
First Turbine Nozzle Removed (Task 4-67)
Methyl ethyl ketone (E36) is flammable
and toxic. It can irritate skin and cause
burns. Use only in well-ventilated area,
away from heat and open flame. In case
of contact, immediately flush skin or
eyes with water for at least 15 minutes.
Get medical attention for eyes.
When using compressed air for cleaning,
use approved protective equipment for
eyes and face. Do not use more than
30 psig air pressure. Do not direct air
toward yourself or another person.
Failure to comply could result in in-
jury to eyes or skin. In case of injury,
get medical attention.
1. Clean first turbine nozzle (1) as follows.
a. Wear gloves (E20) and goggles. Use brush
dampened in methyl ethyl ketone (E36).
b. Blow dry first turbine nozzle (1). Use clean,
dry compressed air.
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